B01D 29/904
Directing the mixture to be filtered on the filtering element in a
Official title: {directing the mixture to be filtered on the filtering element in a manner to clean the filter continuously (B01D29/115, B01D29/118, B01D29/17, B01D29/25, B01D29/336, B01D29/356, B01D29/902, B01D29/908 take precedence)}
B01D29/904 (Directing the mixture to be filtered on the filtering element in a) appears on 71 US grants and 50 published applications in this corpus.
Search patents in B01D- Granted patents
- 71
- Published applications
- 50
- Assignees
- 52
- Inventors
- 154
- Latest grant
- 25 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 3 |
| 2004 | 3 | 4 |
| 2005 | 2 | 3 |
| 2006 | 2 | 3 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 4 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 0 |
| 2019 | 1 | 3 |
| 2020 | 1 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 4 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Automatic flushing device for screen filter of biogas slurry drip irrigation system and use thereof31 Jan 2023US 11,565,201 B1
- Negative pressure filtration apparatus, method, and system30 Aug 2022US 11,426,683 B2
- Plant trichome filtration and concentration9 Nov 2021US 11,167,225 B2Spiral Water Technologies, Inc.
- Internal combustion engine2 Mar 2021US 10,934,915 B2Deutz Aktiengesellschaft
- Filter for hydraulic fluids for hydraulic circuits18 Jun 2026US 2026/0166451 A1Mp Filtri S.P.A.
- Filter for hydraulic fluids for hydraulic circuits19 Mar 2026US 2026/0077281 A1Mp Filtri S.P.A.
- Filter for hydraulic fluids for hydraulic circuits12 Mar 2026US 2026/0070005 A1Mp Filtri S.P.A.
- Filter for hydraulic fluids for hydraulic circuits12 Mar 2026US 2026/0070006 A1Mp Filtri S.P.A.
- Systems and methods for in-line filtering of debris in swimming pools and spas26 Dec 2024US 2024/0424433 A1Zodiac Pool Systems LLC
Most cited
By later US patents
- Filter device68US 5,922,208 ADefil N.V. Holland Intertrust (Antilles) N.V. · 1999
- Filter screen device61US 4,495,072 AYardney Corporation · 1985
- Backwashable fluid filter57US 4,295,963 A1981
- Agricultural or industrial spin filter56US 6,719,900 B2Agricultural Products, Inc. · 2004
- Debris separator unit for raingutter downspouts48US 4,801,377 A1989